Quick answer: Deep penetration, rear-entry to increase the chance of getting a boy

Required Timing: Ovulation day or not more than two days from it.

*Ovulation day is the day when a woman releases an egg.

Rationale: The boy sperms swim faster but are short-lived. When sperms are deposited inside they can get to the egg first. If the egg is not there or is delayed for more than 2 days...the slower but stronger girl sperms will, in turn, be the ones to fertilize the egg.

Rear entry will allow closer access to the cervix where the slippery type (egg white) cervical mucus could "shield" and protect the sperms from the harsh acidic environment of the vagina.

Knowing your ovulation day is the most important information here. The effective way is to monitor your body temperature and specific signs, chart them and observe for 2 or more months.

To Get A Boy (According to Shettles): * Time intercourse as close to ovulation as possible: The idea is that since the Y-chromosome sperm are faster than the X-chromosome sperm, there will be more Y-chromosome sperm who reach the egg, making it more likely that a Y-chromosome carrying sperm will fertilize the egg. * Abstain from intercourse for four to five days prior to ovulation. Have intercourse only just at the time of ovulation and just before. * Have intercourse that allows for deep penetration. Shettles recommends rear-entry (aka, “doggy-style”). The idea is that the sperm will be deposited closer to the cervix where cervical fluid is most friendly to the Y-chromosome sperm and where the “boy sperm” are more likely to survive since there is less distance to travel. * Men avoid tight clothes: heat kills off both types of sperm, but will kill off the less protected, smaller Y-chromosome sperm faster, according to Shettles. * Women have an orgasm: According to Shettles, female orgasm increases the alkaline secretions in the vagina that are favorable to the Y-chromosome carrying sperm. Shettles recommends having an orgasm before or at the same time as the male partner.

I think I've read somewhere (but can't remember where) that aside from assuming the rear-entry position, the woman should try to lower the rest of her body. Again, the objective is to help the Y-sperms reach the egg first (thanks to the Earth's gravity).

^ True yan iAmMa__net! When we went to have the gender determination ultrasound we had to reschedule kasi tulog na tulog si baby, nakadapa pa. Ayaw talaga gumalaw maski na the sonologist was trying to make him turn around by gently poking him. Pasaway nga e. Buti nga when we came back, exhibit kaagad si baby, kita kaagad balls.